Where can I find all exotic plants to unlock the "Duchesses and Other Animals" achievement?

To unlock the ''Duchesses and Other Animals'' achievement in Red Dead Redemption 2, you must collect all exotic plants required for the questline given by Algernon Wasp in Saint Denis. This achievement is tied to completing the five-part ''Duchesses and Other Animals'' mission series, which involves gathering specific plants, feathers, and plumes. The exotic plants are scattered across the map, and finding them requires patience, exploration, and knowledge of their specific locations.\n\nFirst, you must unlock the questline by progressing through Chapter 4 of the story. After completing the mission ''The Gilded Cage,'' Algernon Wasp will approach you in Saint Denis and request your help in collecting rare items. The exotic plants you need to gather are Lady of the Night Orchids, Spider Orchids, Ghost Orchids, Acuna''s Star Orchids, and Cigar Orchids. Each type of orchid has specific spawn locations and conditions, so knowing where to look is crucial.\n\nLady of the Night Orchids can be found in the Bayou Nwa region, particularly near the Kamassa River and Lagras. These orchids grow in swampy areas, often near water. Spider Orchids are located in the northern parts of the map, such as Roanoke Ridge and the area around Brandywine Drop. Ghost Orchids are rare and can only be found in the Bayou Nwa region, specifically near the Bluewater Marsh. Acuna''s Star Orchids are found in the southern part of the map, near the Braithwaite Manor and the coastline. Cigar Orchids are located in the Lemoyne region, particularly around the swamps and forests.\n\nTo efficiently collect these plants, use the in-game map to mark their general locations. Equip your binoculars or Eagle Eye ability to highlight plants in the environment, making them easier to spot. Some orchids only spawn during specific times of the day or under certain weather conditions, so be prepared to revisit locations if necessary. For example, Ghost Orchids are more likely to appear at night, while Acuna''s Star Orchids are easier to find during the day.\n\nOne common challenge is the limited spawn rate of these plants. If you cannot find a specific orchid, try leaving the area and returning after a few in-game days. This resets the spawn points and increases your chances of finding the required plants. Additionally, some orchids are guarded by predators or hostile NPCs, so always be prepared for combat. Carry weapons like a rifle or shotgun to defend yourself against alligators, cougars, or bandits.\n\nOnce you have collected all the required plants, return to Algernon Wasp in Saint Denis to complete the questline and unlock the achievement. This process can take several hours, so patience and persistence are key. Use your horse to travel efficiently between locations, and consider setting up camp to save your progress if needed.\n\nPractical tips for this achievement include using the ''Hunting Request'' checklist to track your progress, as it lists all the required items. Additionally, focus on completing other side activities in the area while searching for orchids to maximize your time. Finally, save your game frequently to avoid losing progress due to unexpected events like ambushes or crashes. With careful planning and exploration, you can successfully unlock the ''Duchesses and Other Animals'' achievement and enjoy this unique aspect of Red Dead Redemption 2''s rich world.